I had such a great honor to work with Sticker Mule in creating some of their new Branded Poly Mailers, which in turn I ended up purchasing some 3" die cut stickers for my large boxes that are harder to stamp and an order of 1" round stickers for packaging every day items.
Uploading was a breeze. All I did was put my order in, upload my design and within 12 hours they had a preview for me to look at before they made them. I had one fix with the circle stickers, replied with just that and only a couple hours later was a new preview was sent to me.
I cannot praise Sticker Mule more for their products.
I highly recommend!!